Keep your upper body straight, look ahead and relax your shoulders. No elbow leakage before swinging arm, no hand leakage after swinging arm.

If you have a foundation, touch the ground with your feet before running, which is fast. But if you have no foundation, or your feet, ankles and other muscles are not strong enough to get hurt easily, you should follow the ground with your feet. I will gradually realize different feelings.

Running relies on pushing back, not dragging the front legs. Try not to jump up and down. Some people think that jumping up and down will make your hair jump and run handsome. In fact, this is an incorrect running posture, which reduces your speed.